Minimalist Walking Robot Design (Video link)
How many servos/degrees of freedom does it take to create a reasonable robot walker?
Of course we're very familiar with the ROBO-ONE type humanoids that require from a minimum of 15 servos and can often exceed 24 servos. But since servos aren't cheap and can often cost $150 and up, once you start increasing the number of servos the robot cost starts to climb rapidly.
At the same time, robots utilizing multiple servos typically require more complex balancing algorithms and gyro sensors. Even an entry level humanoid kit is sometimes beyond the capability of a novice robot builder. So, the question becomes, "What is the smallest number of servos that can be utilized to build a successful walking robot?"
We've seen, and tested, innovative Japanese robot designs that used 5 servos, like Gogic-5, and we've seen a simpler design that was marketed by the Robot Force organization in Osaka. But, how about just 2 servos? Is it possible?
Take a look at this dinosaur robot exhibited in La Paz Mexico recently:
Related links:
Robo-Education Facebook Webpage
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Biped walking (without a tail) has been possible since 1998 when I invented BigFoot
http://www.davidbuckley.net/DB/BigFoot.htm
Parallax’s Toddler was based on BigFoot.
I made an improved 2 servo walker Pop Ambler in 2002.
http://www.davidbuckley.net/DB/Ambler.htm
and videos can be seen on YouTube
http://www.davidbuckley.net/DB/YouTubeVideos.htm
including my 5 servo Limit Cycle Dynamic Walking biped TecFoot.